9A10358500

AM/FM Stereo Tuner

OWNER’S MANUAL

Z

T-R680RS

2

CAUTION

< DO NOT REMOVE THE EXTERNAL CASES OR CABINETS TOEXPOSE THE ELECTRONICS. NO USER SERVICEABLE PARTSARE WITHIN!

< IF YOU ARE EXPERIENCING PROBLEMS WITH THIS PRODUCT,CONTACT TEAC FOR A SERVICE REFERRAL. DO NOT USE THEPRODUCT UNTIL IT HAS BEEN REPAIRED.

IMPORTANT SAFETY INSTRUCTIONS1) Read these instructions.2) Keep these instructions.3) Heed all warnings.4) Follow all instructions.5) Do not use this apparatus near water.6) Clean only with dry cloth.7) Do not block any ventilation openings. Install in accordance with

the manufacturer’s instructions.8) Do not install near any heat sources such as radiators, heat

registers, stoves, or other apparatus (including amplifiers) thatproduce heat.

9) Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider thanthe other. A grounding type plug has two blades and a thirdgrounding prong. The wide blade or the third prong are providedfor your safety. If the provided plug does not fit into your outlet,consult an electrician for replacement of the obsolete outlet.

10) Protect the power cord from being walked on or pinchedparticularly at plugs, convenience receptacles, and the pointwhere they exit from the apparatus.

11) Only use attachments/accessories specified by the manufacturer.12) Use only with the cart, stand, tripod,

bracket, or table specified by themanufacturer, or sold with the apparatus.When a cart is used, use caution whenmoving the cart/apparatus combination toavoid injury from tip-over.

13) Unplug this apparatus during lightning storms or when unusedfor long periods of time.

14) Refer all servicing to qualified service personnel. Servicing isrequired when the apparatus has been damaged in any way,such as power-supply cord or plug is damaged, liquid has beenspilled or objects have fallen into the apparatus, the apparatushas been exposed to rain or moisture, does not operate normally,or has been dropped.

< Do not expose this apparatus to drips or splashes.< Do not place any objects filled with liquids, such as vases, on the

apparatus.< Do not install this apparatus in a confined space such as a book

case or similar unit.< The apparatus draws nominal non-operating power from the AC

outlet with its POWER switch in the off position.< The apparatus should be located close enough to the AC outlet

so that you can easily grasp the power cord plug at any time.< An apparatus with Class ! construction shall be connected to an

AC outlet with a protective grounding connection.

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TOQUALIFIED SERVICE PERSONNEL.

The lightning flash with arrowhead symbol, within anequilateral triangle, is intended to alert the user to thepresence of uninsulated “dangerous voltage” within theproduct’s enclosure that may be of sufficient magnitudeto constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle isintended to alert the user to the presence of importantoperating and maintenance (servicing) instructions in theliterature accompanying the appliance.

WARNING: TO PREVENT FIRE OR SHOCKHAZARD, DO NOT EXPOSE THIS APPLIANCETO RAIN OR MOISTURE.

This equipment has been tested and found to comply with thelimits for a Class B digital device, pursuant to Part 15 of theFCC Rules. These limits are designed to provide reasonableprotection against harmful interference in a residentialinstallation. This equipment generates, uses, and can radiateradio frequency energy and, if not installed and used inaccordance with the instructions, may cause harmfulinterference to radio communications. However, there is noguarantee that interference will not occur in a particularinstallation. If this equipment does cause harmful interferenceto radio or television reception, which can be determined byturning the equipment off and on, the user is encouraged totry to correct the interference by one or more of the followingmeasures:• Reorient or relocate the equipment and/or the receiving

antenna.• Increase the separation between the equipment and

receiver.• Connect the equipment into an outlet on a circuit different

from that to which the receiver is connected.• Consult the dealer or an experienced radio/TV technician

for help.

CAUTION

Changes or modifications to this equipments not expresslyapproved by TEAC CORPORATION for compliance will void theuser’s warranty.

For U.S.A.

3

Contents

Thank you for choosing Esoteric. Read this manualcarefully to get the best performance from this unit.

Before Use

Read this before operation

< As the unit may become warm during operation, always leavesufficient space around the unit for ventilation.

< The voltage supplied to the unit should match the voltage asprinted on the rear panel. If you are in any doubt regardingthis matter, consult an electrician.

< Choose the installation location of your unit carefully. Avoidplacing it in direct sunlight or close to a source of heat. Alsoavoid locations subject to vibrations and excessive dust, heat,cold or moisture.

< Do not place the unit on the amplifier/receiver.

< Do not open the cabinet as this might result in damage to thecircuitry or electrical shock. If a foreign object should get intothe unit, contact your dealer or service company.

< When removing the power plug from the wall outlet, alwayspull directly on the plug, never yank the cord.

< Do not attempt to clean the unit with chemical solvents asthis might damage the finish. Use a clean, dry or slightlydamp cloth.

< Keep this manual in a safe place for future reference.

CAUTIONEnsure this product is not exposed to dripping or splashingand that no object filled with liquids, such as vases, is placedon the product.

Do not install this equipment in a confined space such as abook case or similar unit. Allow adequate air circulationaround this product.

Before Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Connecting Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Unit Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Remote Control Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Radio Reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Direct Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Sleep Timer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Preset Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Setting the Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

RS-232C Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4

Connecting Antennas

FM Indoor AntennaIn an area with strong FM signals, the T-type FM antennaprovided with this unit is sufficient.Extend the antenna into a “T” shape and connect the twowires at the base of the “T” to the provided matchingtransformer, as shown.

After completing connection, plug the transformer into the“FM 75Ω” socket. Extend the top of the “T” and tune thetuner to your favorite station (see page 8). Adjust the antennain a suitable location like a window frame or wall until thereception is best and then affix the antenna in that positionusing thumb tacks, push pins or any other suitable means.

CAUTION:< Switch off the power to all equipment before making

connections.< Read the instructions of each component you intend to use

with this unit.< Be sure to insert each plug securely. To prevent hum and

noise, avoid bundling the signal interconnection cablestogether with the AC power cord or speaker cables.

AM Indoor Loop AntennaThe high-performance AM loop antenna provided with thisunit is sufficient for good reception in most areas.

Snap the supplied loop antenna into the hinge on the rear ofthe unit, and connect the wires running out the loop antennato the AM terminals, as shown.When you actually try listening AM programs later, you maywant to turn the loop antenna on the hinge for the bestpossible reception.

AM Outdoor Antenna

If the AM loop antenna provided does not deliver sufficientreception (often due to being too far from the transmitter orin a concrete building, etc.), it may be necessary to use anoutdoor AM antenna.

Use either a high quality commercial AM antenna or, if notavailable, an insulated wire more than 5 m (15 feet) long,strip one end, and connect this to the terminal as shown.The antenna wire should be strung outdoors or indoors neara window. For better reception, connect the GND terminal toa reliable ground.

Note:Even when using an outdoor AM antenna, do not disconnectthe AM loop antenna.

FM Outdoor Antenna

In an area where FM signals are weak, it will be necessary touse an 75-ohm unbalanced-type outdoor FM antenna.Generally, a 3-element antenna will be sufficient; if you live inan area where the FM signals are particularly weak, it may benecessary to use one with 5 or more elements.

< If you are using a 300-ohm antenna, connect it to the tunervia the supplied matching transformer. (No need for it inconnecting a 75-ohm antenna.)

< Disconnect the FM indoor antenna when using an outdoorantenna.

AM outdoor antenna

AM indoor loop antenna

5

TUNER IN

Amplifier

R L

A B

C

D

CAUTION:< Switch off the power to all equipment before making

connections.< Read the instructions of each component you intend to use

with this unit.< Be sure to insert each plug securely. To prevent hum and

noise, avoid bundling the signal interconnection cablestogether with the AC power cord or speaker cables.

LINE OUT jackAnalog 2-channel audio signal is output from this jack.Connect this jack to the TUNER input jack of the amplifierwith an RCA cable.

Make sure to connect :white plug q white jack (L: left channel)red plug q red jack (R: right channel)

RS-232C connectorSee page 14 for details.

Power cord (AC)Be sure to connect the power cord to an AC outlet whichsupplies the correct voltage.

Hold the power plug when plugging or unplugging thepower cord. Never pull or yank on the power cord.

C

B

A

Voltage Conversion

Be sure to remove the power cord from the AC outlet beforerepositioning the voltage converter switch.

1. Locate the voltage selector on the rear panel.

2. Using a flat-bladed screwdriver, set to the appropriate230V or 120V position according to your area.

IN NORTH AMERICA USE ONLY ON 120 V SUPPLY.

RESET switchIn the following cases, function buttons may not workproperly.

• When the system is damaged by electrical shock.• When the power is irregular or has electrical noises.

In these cases, press the RESET switch once or twice with apencil or a ball-point pen lightly.All the settings kept in memory (such as preset stations) willbe erased.

D

Connections

6

Note:To simplify explanations, instructions in this manual refer to thenames of the buttons and controls on the front panel only.Associated controls on the remote control will also operatesimilarly.

Unit Functions

A DB EC F G H

IJKLM

A K

C

IHG

B

7

Remote Control Unit

1. Remove the battery compartment cover.

2. Insert two “AA” (R6 or SUM-3) dry batteries. Make sure thatthe batteries are inserted with their positive “+” andnegative “_” poles positioned correctly.

3. Close the cover.

Battery ReplacementIf the distance required between the remote control unit andmain unit decreases, the batteries are exhausted. In this casereplace the batteries with new ones.

Precautions concerning batteries< Be sure to insert the batteries with correct positive “+” and

negative “_” polarities.

< Use batteries of the same type. Never use different types ofbatteries together.

< Rechargeable and non-rechargeable batteries can be used.Refer to the precautions on their labels.

< When the remote control unit is not to be used for a longtime (more than a month), remove the batteries from theremote control unit to prevent them from leaking. If theyleak, wipe away the liquid inside the battery compartmentand replace the batteries with new ones.

< Do not heat or disassemble batteries and never dispose of oldbatteries by throwing them in a fire.

The provided Remote Control Unit allows the unit to be operatedfrom a distance. When operating the remote control unit, point it towards theremote sensor on the front panel of the unit.

< Even if the remote control unit is operated within the effectiverange (5m), remote control operation may be impossible ifthere are any obstacles between the unit and the remotecontrol.

< If the remote control unit is operated near other productswhich generate infrared rays, or if other remote controldevices using infrared rays are used near the unit, it mayoperate incorrectly. Conversely, the other products mayoperate incorrectly.

Battery Installation

POWER (STANDBY/ON)

Press this switch to turn the unit on or standby (clock mode).

When using the remote control unit, press the ON button toturn the unit on, and press the STANDBY button to turn itstandby.

Numeric buttons

These are used either to directly input frequency numbers orto select preset stations.

DIRECT TUNING

Press this button and you can use the numeric buttons todirectly input frequency numbers.

Display

TIMER

Press this button to put the tuner under the control of a built-in timer in terms of automatically switching on power to theunit at a predetermined time and turning it off after apredetermined time period.

FM MODE

This button toggles Stereo and Mono modes.

TUNING MODE

Press this button to toggle Preset and Tuning modes.

TUNING/PRESET/TIME

These buttons are used to: 1) search out stations; 2) let theunit tune in to a preset station; and 3) set a built-in clock andtimer.

AM/FM

Use this button to select either of the frequency bands.

MEMORY/SET

This button is used either to store stations in presets or to seta built-in clock and timer.

SLEEP

This button lets you set a time at the end of which this unitautomatically switches itself off.

TIME SET

Press this button and the MEMORY/SET button is available toset a built-in clock and timer.

Remote control sensor

Receives signals from the remote control unit. Point theremote control unit at this sensor when operating the remotecontrol unit.

M

L

K

J

I

H

G

F

E

D

C

B

The equipment draws a nominal amount of power from theAC outlet even with its POWER switch in the OFF position.

A

8

Radio Reception

Hold down the TUNING button for 0.5 to 2 seconds.When a station is found, the tuning process will stopautomatically.

If you want to stop the tuning process, press the TUNINGbutton.

Selecting stations which cannot be tuned automatically(manual selection)Hold down (or repeatedly press) the TUNING button andrelease it when the station you want to listen to is found.When the TUNING button is pressed momentarily (0.5 secondor less), the frequency changes by a fixed step.

< “TUNED” is displayed when a broadcast is correctly tuned in.

Pressing this button alternates between Stereo mode and Monomode.

Stereo

FM stereo broadcasts are received in stereo.The “STEREO” indicator lights on the display when an FMstereo broadcast is tuned in.

< If the sound is distorted and the “STEREO” indicator lightflashes, the signal is not strong enough for good stereoreception. In this case, change to MONO mode.

Mono

To compensate for weak FM stereo reception, select thismode. Reception will now be forced monaural, reducingunwanted noise.

Select AM or FM by pressing the corresponding button.2

If the PRESET indicator is lit, press the TUNING MODEbutton to select the manual tuning mode.

The PRESET indicator disappears from the display.This button is used to change the tuning mode.

3

Select the station you want to listen to (auto selection).4

FM MODE Button

Press the POWER switch (or ON button of the remotecontrol unit) to turn the unit on.

1

1 3 4

2

9

Direct Tuning

Example: FM 107.5 MHz

Example: AM 1000 kHz

Using this method, the required frequency can be input directly.

Press the DIRECT TUNING button.

The frequency numbers that were displayed should go out.They will come up again if you don't go on to the next stepwithin 5 seconds. If this happens, press the DIRECT TUNINGbutton again.

Input the frequency of the broadcast you want to hearwith the numeric keys.

2

1

< To directly tune to FM frequencies, you need to input twodigits after the decimal point.

< Either in FM or AM mode, if the number you enter in therightmost column is wrong and all the preceding numbers arecorrect, the tuner tunes to the nearest frequency available.

Sleep Timer

SLEEP 90 (80, 70...or 10)

The SLEEP indicator lights, and the power will be switched off90 (80, 70 ... or 10) minutes later.

Normal display: The sleep timer is off.

< When you set the sleep timer, the display is dimmedautomatically.

< If you want to check the remaining time, press the SLEEPbutton once. The remaining time (REST) will be displayed for3 seconds, and then return to the normal display.

The power can be switched off after a specified amount of time.

Press the SLEEP button repeatedly until desired time appears onthe display.The sleep time can be changed in steps of 10 minutes.

10

Tune in a station you want to listen to (see steps toof page 8 or “Direct Tuning” on page 9).

Press the MEMORY button.2

411

The display briefly shows “SAVE”, and the station is stored inmemory.

You can also use the numeric buttons to select a presetchannel.For instance, to select preset number 25, press “2” and “5”.To select numbers less than 10, press “0” and then thenumber. As an example, to select number 5, press “0” and“5”. (Optionally, you may press just the number “5” andthen wait a few seconds.)When using the numeric buttons, the station is storedautomatically without pressing the MEMORY button.

To store more stations, repeat steps to .

< If you store a new station to a channel, the station previouslystored in the channel will be overwritten.

31

While the “MEMORY” indicator is blinking, select apreset channel to store the station using theTUNING/PRESET buttons, and then press the MEMORYbutton.

3

Up to 30 of the best received stations in your area will bestored automatically.

Select AM or FM by pressing the corresponding button.1

Hold down the MEMORY button and release it when“AUTOSAVE” briefly appears on the display.

2

Preset Tuning

12

You can store FM and AM stations from Channel 1 to 30respectively.

Automatic Memory Presetting

MEMORYNumeric buttons

TUNING/PRESET

Manual Memory Presetting

11

For instance, to select preset number 25, press “2” and “5”.To select numbers less than 10, press “0” and then thenumber. As an example, to select number 5, press “0” and“5”. (Optionally, you may press just the number “5” andthen wait a few seconds.)

When using the TUNING/PRESET button, press it repeatedlyuntil the desired preset station is found.

Memory BackupIf the unit is disconnected from the power supply for morethan one hour, clock and timer settings kept in memory will beerased.

Preset stations persist on a semipermanent basis even whenthe power plug is disconnected.

Select AM or FM by pressing the corresponding button.1

If “PRESET” indicator is not lit, press the TUNING MODEbutton to select the preset tuning mode.

2

Select a preset channel using the numeric buttons orthe TUNING/PRESET buttons.

3

Setting the Clock

Press the TUNING/PRESET/TIME buttons to set thecurrent hour.

3

Press the TUNING/PRESET/TIME buttons to set thecurrent minute.

5

The clock starts from 00 second.

Press the TIME SET button once. 1

The “minute” value blinks.

Press the MEMORY/SET button.4

“TIME SET” blinks on the display.< You can adjust the clock even when the unit is in the standby

mode.

Within 5 seconds, press the MEMORY/SET button.2

The “hour” value blinks.

Press the MEMORY/SET button.6

MEMORY/SETTIME SET

TUNING/PRESET/TIME

How to select preset stations

AM/FMNumeric buttons

TUNING/PRESETTUNING MODE

12

< The unit can be programmed to turn on and off (standby) at aspecified time every day.

< Adjust the clock before setting the timer (see page 11).

Setting the start timePress the TIME SET button twice.1

Press the TUNING/PRESET/TIME buttons to set the starttime (hour), and then press the MEMORY/SET button.

3

The “minute” value blinks.

Within 5 seconds, press the MEMORY/SET button.2

The “hour” value blinks.

Press the TUNING/PRESET/TIME buttons to set the starttime (minutes), and then press the MEMORY/SETbutton.

4

The start time is stored in memory, and the display returns tonormal.

“ON-TIME” blinks on the display.

< Each time the TIME SET button is pressed, the mode ischanged as follows:

Normal mode(Frequency or Clock)

TIME SET

ON-TIMEOFF-TIME

Setting the stop timePress the TIME SET button three times.1

Press the TUNING/PRESET/TIME buttons to set the stoptime (hour), and then press the MEMORY/SET button.

3

The “minute” value blinks.

Within 5 seconds, press the MEMORY/SET button.2

The “hour” value blinks.

Press the TUNING/PRESET/TIME buttons to set the stoptime (minutes), and then press the MEMORY/SETbutton.

4

The stop time is stored in memory, and the display returns tonormal.

“OFF-TIME” blinks on the display.

Timer

MEMORY/SETTIME SET

TUNING/PRESET/TIME

13

The TIMER indicator appears on the display.

Tune in a station.

Press the POWER switch to turn the unit off (standby).3

2

To turn on the timerAfter setting the start time and stop time, press theTIMER button to turn the timer on.

1

To check the timer settingTo check the current timer settings, press the TIME SETbutton twice, then press the MEMORY/SET button. If you arehappy with the current ON-TIME setting, press the TIME SETbutton once, followed by the MEMORY/SET button, to checkthe OFF-TIME setting.

< When you don’t use the timer, press the TIMER button toturn it off. The TIMER indicator disappears from the display.Press the TIMER button again to turn it on.

If you experience any problems with the unit, please take amoment to look through this chart and see if you can solve theproblem yourself before you call your dealer or a TEAC servicecenter.

No powereCheck the connection to the AC power supply. Check and

make sure the AC source is not a switched outlet and that,if it is, the switch is turned on. Make sure there is power tothe AC outlet by plugging another item such as a lamp orfan.

No soundeCheck the connection to the amplifier.eCheck the operation of the amplifier.

Cannot listen to any station, or signal is too weak.eMake sure the antenna is properly connected.e Tune in the station properly.e If a TV is near the unit, turn it off.e Install the antenna again after relocating it to a better

reception position.eAn external antenna may be required.

Sound is noisy.e Place the antenna as far away from a TV or a CD player as

possible.e If a TV or a CD player is near the unit, turn it off.

Though the broadcast is stereo, it sounds monaural.e Press the FM MODE button.

Remote control doesn’t work.e Press the POWER switch (or the ON button of the remote

control unit) to turn the unit on.e If the batteries are dead, change the batteries.eUse remote control unit within the range (5m/15ft) and

point at the front panel.eClear obstacles between the remote control unit and the

main unit.e If a strong light is near the unit, turn it off.

If normal operation is not restored, unplug the power cordfrom the outlet and plug it again.

MaintenanceIf the surface of the unit gets dirty, wipe with a soft cloth oruse diluted neutral cleaning liquid. Be sure to remove anyfluid completely. Do not use thinner, benzine or alcohol asthey may damage the surface of the unit.

Troubleshooting

Don’t forget to turn the unit off (standby), or the timerwon’t work.The unit will turn on with the station you selected last time.

TIMERPOWER

14

Hardware SpecificationProtocol

Baud rate: 38400 bpsData Bit: 8 BitsStop Bit: 1 BitsParity: None

Connector & Pin DefinedT-R680RS Connector: 9-pin female DBPC Connector: 9-pin male DB

PC T-R680RSPin 2 RxD —— TxD Pin 2Pin 3 TxD —— RxD Pin 3Pin 5 Gnd —— Gnd Pin 5

Software SpecificationRx Format1. Flow Control: No2. Rx Format:

IR System Code 1 + IR System Code 2 + Key Code +CheckSumChecksum = IR System Code 1 + IR System Code 2 + KeyCode

3. Each of tx format code needs the 100ms of the partition

Function Code RemarkPower “\x81\x73\x07\xfb” Power on/off togglePower On “\x81\x73\x4b\x3f”Power Off “\x81\x73\x4c\x40”AM Band “\x81\x73\x4d\x41”FM Band “\x81\x73\x4e\x42”FM mode “\x81\x73\x61\x55” Stereo/Mono toggleTuning Up “\x81\x73\x0c\x00”Tuning Down “\x81\x73\x0d\x01”Tuning Mode “\x81\x73\x4a\x3e” Preset/Tuning toggleDirect Tuning “\x81\x73\x47\x3b”Tuner Preset 1 “\x81\x73\x17\x0b”Tuner Preset 2 “\x81\x73\x18\x0c”Tuner Preset 3 “\x81\x73\x19\x0d”Tuner Preset 4 “\x81\x73\x1a\x0e”Tuner Preset 5 “\x81\x73\x1b\x0f”Tuner Preset 6 “\x81\x73\x1c\x10”Tuner Preset 7 “\x81\x73\x1d\x11”Tuner Preset 8 “\x81\x73\x1e\x12”Tuner Preset 9 “\x81\x73\x1f\x13”Tuner Preset 0 “\x81\x73\x40\x34”Memory “\x81\x73\x63\x57”Tuner Autosave “\x81\x73\xcd\xc1”Time Mode “\x81\x73\x62\x56”Timer “\x81\x73\x60\x54”Sleep “\x81\x73\x41\x35”Echo On “\x81\x73\xce\xc2” Enable T-R680RS

sends out the display message(default)Echo Off “\x81\x73\xcf\xc3”

Disable T-R680RS sends out the display messageDeviceID “\x81\x73\xff\xf3” Echo “\x81\x73\xff\xf3”

BIT 7ICON BIT MAP 0

* * * * * * * *

BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

BIT 7ICON BIT MAP 2

* * * * * * TIMER SLEEPBIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

BIT 7ICON BIT MAP 1

TIMEMARK

AUTO KHz Frequencydot

MHz STEREO TUNEDBIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

BIT 7ICON BIT MAP 3

* * * * PRESET PRESETCH.

* MEMORY

BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

Tx FormatT-R680RS to PC ProtocolFlow Control: NoData transferring through T-R680RS to PC are always with thefollowing “Package” structure.Protocol: Head + Tx Type + Icon Bit Map + Main DisplayData + Channel Display Data + Checksum

Head(1 byte): 0xcdTx Type(1 byte): 0 , 40, 41Icon Bit Map( 4 byte): HEX codeMain Display Data( 8 byte): ASCII dataChannel Display Data(2 byte): ASCII dataChecksum(1 byte): Head + Tx Type + Icon Bit Map + MainDisplay Data + Channel Display Data

Basic Tx commands are categorized as below:1. Tx Type 40

Code: 0xcd + 0x28 + 0x00 + 0xf5Description: T-R680RS send out Power Off Command

2. Tx Type 41Code: 0xcd + 0x29 + 0x00 + 0xf6Description: T-R680RS send out Power On Command

3. Tx Type 0Code: Head + Tx Type + Icon Bit Map + Display String +Channel Data + ChecksumDescription: T-R680RS send Display Windows StringCommand

Explain the meaning of delivering the data format below

ICOM BIT MAP

Show the ICON of the main display

*: not used

RS-232C Protocol

15

MAIN DISPLAY DATA :

Show main message, for exampleFM 103.30AM 1710SLEEP 90

CHANNEL DISPLAY DATA :

Show the message of PRESET CHANNEL, for example1222...

Software Programming Procedure1. To start-up T-R680RS, the control system should be send

“Power On” command (start working command), then the T-R680RS is Under-control.

2. When T-R680RS press on the Power Key to Power Off, T-R680RS will send out the Code: 0x81 + 0x73 + 0x4c + 0x40

3. When T-R680RS press on the Power Key to Power On, T-R680RS will send out the Code: 0x81 + 0x73 + 0x4b + 0x3f

4. When T-R680RS Display Window is changed, T-R680RS willsend out the Code: Head + Tx Type + Main Display Dat +Channel Display Data + Checksum

Specifications

FM Tuner Section (Without notes 98 MHz, 65 dBf)

Tuning Range. . . . . . . 87.5 MHz - 108.0 MHz (100 kHz steps)Usable Sensitivity (IHF) . . . . . . . . . . . . . . . . . . Mono: 11.2 dBf 50 dB Quieting Sensitivity . . . . . . . . . . . . . . . . . Mono: 15 dBf

Stereo: 20 dBfTotal Harmonic Distortion (1 kHz) . . . . . . . . . . . . Mono: 0.4%

Stereo: 0.5%Frequency Response . . . . . . . . . . 30 Hz - 15 kHz, +1/ –1.5 dBStereo Separation (1 kHz) . . . . . . . . . . . . . . . . . . . . . . . 40 dBSignal-to-Noise Ratio . . . . . . . . . . . . . . . . . . . . . Mono: 72 dB

Stereo: 70 dB

AM Tuner SectionTuning Range . . . . . . . . . 530 kHz - 1,720 kHz (10 kHz steps)Usable Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 dB/mTotal Harmonic Distortion . . . . . . . . . . . . . . 0.8% at 85 dB/mSignal-to-Noise Ratio . . . . . . . . . . . . . . . . . . 45 dB at 85 dB/m

GeneralPower requirements . . . . . . . . . . . . . 120/230 V AC, 50-60 Hz Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 W Dimensions (W x H x D) . . . . . . . . . . . . . 435 x 102 x 270 mm

(17 1/8” x 4” x 10 5/8”)Weight (net) . . . . . . . . . . . . . . . . . . . . . . . 4.0 kg (8 13/16 lbs)

Standard Accessories:AM Loop Antenna x 1FM T-type Antenna x 1Matching Transformer x 1Remote Control Unit (RC-789) x 1

< Design and specifications are subject to change withoutnotice.

< Illustrations may differ slightly from production models.

1105. MA-1037A

Z

This appliance has a serial number located on the rear panel. Please recordthe model number and serial number and retain them for your records.

Model number Serial number

TEAC CORPORATION 3-7-3, Nakacho, Musashino-shi, Tokyo 180-8550, Japan Phone: (0422) 52-5081

TEAC AMERICA, INC. 7733 Telegraph Road, Montebello, California 90640 Phone: (323) 726-0303

TEAC CANADA LTD. 5939 Wallace Street, Mississauga, Ontario L4Z 1Z8, Canada Phone: (905) 890-8008

TEAC MEXICO, S.A. De C.V Campesinos N°184, Colonia Granjas Esmeralda, Delegacion Iztapalapa, CP 09810, México DF Phone: (525) 581-5500

TEAC UK LIMITED Unit 19 & 20, The Courtyards, Hatters Lane, Watford, Hertfordshire, WD18 8TE , U.K. Phone: (0845) 130-2511

TEAC EUROPE GmbH Bahnstrasse 12, 65205 Wiesbaden-Erbenheim, Germany Phone: 0611-71580

TEAC ITALIANA S.p.A. Via C. Cantù 9/A, 20092 Cinisello Balsamo, Milano, Italy Phone: 02-66010500

TEAC AUSTRALIA PTY., LTD. 30 Tullamarine Park Road, Tullamarine, VIC 3043, Australia Phone: (03) 8336-6500A.B.N. 11 113 998 048